Closet-tank ball-cock.



E. R. HILL.

CLOSET TANK BALL COCK.

APPLICATION FILED 1AN.5,|916.

1,212,05@ Patented im 9,1917.

www Fl.. uw l '9 l NmHNEys ELIJAH ROBERTSON HILL, F NEW ALBANY, MISSISSIPPI.

cLosET-TANK BALL-cock.

Specication of Letters'latent.

Patentedy Jan. 9, 1917.`

Application led January 5, 1916. Serial No. 70,399.

To all-whom t may concern:

`Be it known'that I, ELIJAH R. HILL, a citizen of the United States, and a resident of New Albany, in the county of Union and State of Mississippi, have invented a new and Improved Closet-Tank Ball-Cock, of which the following is a full, clear, and eX- act description.

This invention relates to plumbing appliances and has particular reference to ball cocks for flush tanks. l

Among the objects of the invention is to provide a new and speciiic form of valve mechanism including a flexible diaphragm located between relatively xed and movable valve parts, said movable part being controlled by lever mechanism from the float.

A further object of the invention is to improve the construction of the body portion of the valve with respect to the means for` locking the diaphragm in operative position.

A still further object of the invention is to adapt the improved valve mechanism `to either low-down or high tanks.

With the foregoing and other objects in view, the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which-l Figure 1 is a vertical sectional view of the main parts of one form of the invention; Fig. 2 is a horizontal sectional detail on the line 2 2 of Fig. 1; Fig. 3 is a vertical sectional view of the same invention but embodying modifications; and Fig. 4 is' a horizontal sectional detail on the line 4-4 of Fig. 3.

In the drawings I show at 10 a portion of a flush tank in the bottom of which is fitted a spud 11 in any well known or approved manner. A valve stem 12 extends upwardly from the Spud to any desired height, depending upon the character or location of the tank, and terminates in or has secured upon it a valve head 13, the active endportion of which preferably consists of a thimble 14 of glass, porcelain or the like constituting the valve seat proper. Said head 13 is provided with an annular shoulder 15 surrounding and spaced from the -valve seat, and this portion of the device, as shown in Fig. 1, is tapped into the lower portion'of the'valve body 16. The body 16 is usecured rigidly in position by any Vsuitable means as through the valve head 13 and supply valve stem 12, and the water received through the stem and valve seat is adapted to be delivered through and from the body by various means. In Fig. 1 I show a delivery spout 17 leading laterally from the axis of the body and thence bent downwardly, the water owing. from the spout through a hush tube 18 where it is delivered at the bottom of the tank. Obviously the length of this hush tube will be proportioned according to the height of the valve mechanism above the bottom of the tank.

The upper portion of the body 16 is formed with a rabbet 19 constituting a iiXed seat for the periphery of a iexible diaphragm 20 spanning the valve seat. A crown or ring 21, shown asiof annular or hollow cylindrical form, is located between the shoulder 15 of the head and the periphery of the diaphragm, and thereby, when 'the head is screwed tightly into the body,

the diaphragm is locked rigidly and permanently in place. The crown 21 is provided with a plurality of lateral openings 22 through which the water may pass laterally through the crown.

At 23 is indicated a plunger fitted slidably in the upper portion of the body in axial alinement with the valve seat 14 and valve stem and adapted to bear downwardly upon the central portion of the diaphragm to constitute a closure for the supply pipe. The water pressure acting through the supply pipe will lit the dia hragm unless the plunger is held down by some external means. v

The plunger 23 is shown provided with a transverse slot 24 forming a bearing for a lever 25 pivoted at 26 upon a rigid extension from the body 16. The float rod 27 has ad instable jointed connection at 28 with an- .other lever 29 pivoted at 30 to another rigid extension 31. A link 32 connected to the respective levers 25 and 29 causes a movement of the plunger 23 toward or from the valve seat.according to whether the float (not shown, but connected to the rod 27 in the usual manner) rises or falls according tothe depth of the water in the tank. This downward -movement of the plunger serves to cause the flexible diaphragm 20 'to engage the valve seat and stop the flow of water through the valve stem. With the delivery of the water from the tank in any approved manner not constituting any art 'of this invention, and the lowering o the float rod, the plunger will be lifted and thereby'the water will pass -upwardly though the valve stemy and valve seat, thence outwardly' through the openings 22v of the crown and through the spout 17 and hush tube 18 to refill the tank. A common form of refill tube 33/ for the bowl may be connected to the valve body if desired, according tothe type or elevation of the tank valve mechanism.

By loosening the winged nut 34 at the joint associated therewith. The supply valve f stem 12 .is supported, as above described,V `upon a spud 11 and carries ahead 13 at its upper end in which is supported in axial alinement with the valve stem a non-corrodible valve seat 14. The head 13 is tapped into the lower portion of the body 16 substantially as previously described, and such connection serves to cause the crown 21 to grip the periphery of the dia hragm 20 against the upper portion ofthe o'dy in the v rabbet 19. This crown also is provided with openings 22 communicating with a refill tube 33. The structure of the headr13, howincludes a downwardly projecting flange 36` having an internal thread into which is vconnected a hushtube 18' surrounding the supply stem and delivering the water received from the supply stem and head vclose to the bottom of the tank base of the supply stem.

In flush tank valve mechanism, the combination of a supply pipe having a head and valve seat at its upper end, said head having ay laterally projecting annular shoulder, a hollow rigid body into which said head and valve seat 4are projected and secured, said body having an annular shoulder directly above the head shoulder, a flexible diaphrag'm spanning the upper portion of the bodycavity across the valve seat,- and fitted against the body shoulder, a hollow cylin- 'drical crown located betweenthe head and the periphery of the diaphragm serving to clamp the diaphragm in place, said crown having one or more lateral radial openings, a member movable toward and fromthe valve seat and located upon the opposite side of the diaphragm therefrom, and ioat controlled devices connected to said movable member and 'determining its position with 10 and around the respect to the valve seat according to the i depth of the water in the tank.

'ELIJAH ROBERTSON HILL. y

Witnesses: i

H. D. STEPHENS, A.` L. Roenizs. 

